C. P. Nath, T. K. Das, Suman Sen, B. Duary, Sourav Ghosh, P. K. Ghosh, A. R. Sharma, Debarati Datta, Arpita Nalia, Narendra Kumar, Raghavendra Singh, Ranjan Bhattacharyya, Ravi Gopal Singh, K. K. Hazra, Himanshu Pathak
A detailed insight on global yield change of crops, soil quality parameters, and water-nutrient-energy nexus and biotic factors under conservation tillage (CT) in comparison to conventional tillage (CONT) is limited. We summarized the impacts of CT on yields, profitability, soil quality, and ecosystem sustainability in comparison to CONT. Globally, average yields of crops increased by 3.7% (p < 0.05) with adoption of CT (> 3 years) compared to CONT. The CT has led to a significant improvement in crop productivity in North America (+6.2%) and Australia/Oceania (+21.4%) over CONT. Similarly, positive changes in yields with CT, although nonsignificant, were noted in Asia, South America, Europe, and Africa. The CT significantly increased the yields (+4.0%) of cereal crops. Among the crops, yield increase under CT was the highest for sorghum (110.1%) and lowest for soybean (1.3%). Adoption of CT for > 10 years (11–20 years) could increase yields of crops up to 6%–18%. Notably, CT resulted in improved soil aggregation with greater proportion of macroaggregates (+40%), soil organic carbon (+19.1%), and microbial biomass carbon (+44%) across diverse ecologies over CONT. Despite higher emissions of nitrous oxide, the net global warming potential was consistently lower in CT-based systems than CONT. The CT could result in 25% increase in mean grain yield of crops with 22% higher net returns and 27% energy saving across regions than CONT. The CA can reduce soil bulk density (by 6.2%), increase aggregate stability (by 30%), and enhance infiltration rate (by 53%) as compared with CONT over a large agro-ecologies.
{"title":"A Quantitative Comparison of Conventional and Conservation Tillage of Diverse Agro-Ecologies","authors":"C. P. Nath, T. K. Das, Suman Sen, B. Duary, Sourav Ghosh, P. K. Ghosh, A. R. Sharma, Debarati Datta, Arpita Nalia, Narendra Kumar, Raghavendra Singh, Ranjan Bhattacharyya, Ravi Gopal Singh, K. K. Hazra, Himanshu Pathak","doi":"10.1002/ldr.5511","DOIUrl":"https://doi.org/10.1002/ldr.5511","url":null,"abstract":"A detailed insight on global yield change of crops, soil quality parameters, and water-nutrient-energy nexus and biotic factors under conservation tillage (CT) in comparison to conventional tillage (CONT) is limited. We summarized the impacts of CT on yields, profitability, soil quality, and ecosystem sustainability in comparison to CONT. Globally, average yields of crops increased by 3.7% (<i>p</i> < 0.05) with adoption of CT (> 3 years) compared to CONT. The CT has led to a significant improvement in crop productivity in North America (+6.2%) and Australia/Oceania (+21.4%) over CONT. Similarly, positive changes in yields with CT, although nonsignificant, were noted in Asia, South America, Europe, and Africa. The CT significantly increased the yields (+4.0%) of cereal crops. Among the crops, yield increase under CT was the highest for sorghum (110.1%) and lowest for soybean (1.3%). Adoption of CT for > 10 years (11–20 years) could increase yields of crops up to 6%–18%. Notably, CT resulted in improved soil aggregation with greater proportion of macroaggregates (+40%), soil organic carbon (+19.1%), and microbial biomass carbon (+44%) across diverse ecologies over CONT. Despite higher emissions of nitrous oxide, the net global warming potential was consistently lower in CT-based systems than CONT. The CT could result in 25% increase in mean grain yield of crops with 22% higher net returns and 27% energy saving across regions than CONT. The CA can reduce soil bulk density (by 6.2%), increase aggregate stability (by 30%), and enhance infiltration rate (by 53%) as compared with CONT over a large agro-ecologies.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"162 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143371530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaofei Ma, Huili He, Tianci Huo, Yuan Su, Wei Yan
Wind erosion refers to wind transport of fine particulate matter and nutrient-rich materials. This form of erosion can have a considerable impact on the ecological environment and human health. Regional wind protection and sand fixation are considered to be major ecosystem services in arid zones. Previous applications of wind erosion assessment models in arid zones applied green vegetation as the main model parameter. However, there has been little consideration of the role of Non-Photosynthetic Vegetation (NPV) on wind erosion, which is widely distributed in arid zones. Therefore, this study reconstructed a soil wind erosion model (WEM) applicable to the arid zone of Central Asia by quantitatively assessing regional NPV and coupling NPV with the Revised Wind Erosion Equation (RWEQ) model based on the cusp mutation model. The results showed that NPV significantly reduced wind erosion in northern and central Kazakhstan from 2001 to 2020. The adequate consideration of NPV resulted in a reduction in simulated wind erosion in Central Asia by 400 t km−2 per year. NPV had the greatest effect on wind erosion in spring and autumn, whereas it had least effect in winter, mainly due to the coverage of NPV and the seasonality of wind erosion. Regions showing a positive correlation between temperature and wind erosion were mainly located in northern Kazakhstan with a high coverage of NPV. Precipitation showed a negative correlation with wind erosion. Incorporation of NPV into the RWEQ model improved the accuracy of simulated wind erosion in Central Asia by 8.2%. The proposed method can support mitigation of wind erosion hazards and the improvement of the ecological environment in arid regions of Central Asia. This study can also act as a reference for improving the accuracy of large-scale simulation of wind erosion.
{"title":"Reassessing Soil Wind Erosion in Arid Regions of Central Asia: Fully Considering the Contribution of Non-Photosynthetic Vegetation (NPV)","authors":"Xiaofei Ma, Huili He, Tianci Huo, Yuan Su, Wei Yan","doi":"10.1002/ldr.5512","DOIUrl":"https://doi.org/10.1002/ldr.5512","url":null,"abstract":"Wind erosion refers to wind transport of fine particulate matter and nutrient-rich materials. This form of erosion can have a considerable impact on the ecological environment and human health. Regional wind protection and sand fixation are considered to be major ecosystem services in arid zones. Previous applications of wind erosion assessment models in arid zones applied green vegetation as the main model parameter. However, there has been little consideration of the role of Non-Photosynthetic Vegetation (NPV) on wind erosion, which is widely distributed in arid zones. Therefore, this study reconstructed a soil wind erosion model (WEM) applicable to the arid zone of Central Asia by quantitatively assessing regional NPV and coupling NPV with the Revised Wind Erosion Equation (RWEQ) model based on the cusp mutation model. The results showed that NPV significantly reduced wind erosion in northern and central Kazakhstan from 2001 to 2020. The adequate consideration of NPV resulted in a reduction in simulated wind erosion in Central Asia by 400 t km<sup>−2</sup> per year. NPV had the greatest effect on wind erosion in spring and autumn, whereas it had least effect in winter, mainly due to the coverage of NPV and the seasonality of wind erosion. Regions showing a positive correlation between temperature and wind erosion were mainly located in northern Kazakhstan with a high coverage of NPV. Precipitation showed a negative correlation with wind erosion. Incorporation of NPV into the RWEQ model improved the accuracy of simulated wind erosion in Central Asia by 8.2%. The proposed method can support mitigation of wind erosion hazards and the improvement of the ecological environment in arid regions of Central Asia. This study can also act as a reference for improving the accuracy of large-scale simulation of wind erosion.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"16 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143371582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Camila Julia Pacheco Ramos, Paulo Maurício Lima de Alencastro Graça, Philip Martin Fearnside
The 2006 study of fire severity in coniferous forest by Key and Benson derived threshold values of the Delta Normalized Burn Ratio (∆NBR) for interpreting satellite imagery of fire scars, and ∆NBR has been widely used for forest fire severity worldwide. We hypothesized that these thresholds underestimate the severity of fires of tropical forests. Our goal was to find appropriate thresholds to map fire severities in the central Amazon and evaluate trends in recent years. These forests are increasingly threatened by deforestation, severe droughts and wildfires. We adjusted the ∆NBR decision thresholds using new methods that are relatively fast and cheap, with a combination of field data, hemispherical photographs of the opening of the forest canopy with different fire severities, and the use of Landsat data for fires that occurred in 2015 images. The agreement between the classification of severity in the field and the classification by the adjusted ∆NBR thresholds was satisfactory (overall accuracy = 74.2%; Kappa coefficient = 0.635). Using the Key & Benson thresholds resulted in a Kappa value of only 0.184, and the severity classification would be underestimated. We applied the new threshold values to map forest fire severity in the central Amazon from 1995 to 2017. The year 2015 had the greatest area of fire, of which 60.7% was classified as moderate, 19% as high, and 20% as low severity. The results corroborate the importance of adjusting decision thresholds for each study area to classify fire severity using ∆NBR.
{"title":"Adjusted ∆NBR Index Thresholds for Forest Fire Severity Mapping: A Study in Central Amazonia","authors":"Camila Julia Pacheco Ramos, Paulo Maurício Lima de Alencastro Graça, Philip Martin Fearnside","doi":"10.1002/ldr.5466","DOIUrl":"https://doi.org/10.1002/ldr.5466","url":null,"abstract":"The 2006 study of fire severity in coniferous forest by Key and Benson derived threshold values of the Delta Normalized Burn Ratio (∆NBR) for interpreting satellite imagery of fire scars, and ∆NBR has been widely used for forest fire severity worldwide. We hypothesized that these thresholds underestimate the severity of fires of tropical forests. Our goal was to find appropriate thresholds to map fire severities in the central Amazon and evaluate trends in recent years. These forests are increasingly threatened by deforestation, severe droughts and wildfires. We adjusted the ∆NBR decision thresholds using new methods that are relatively fast and cheap, with a combination of field data, hemispherical photographs of the opening of the forest canopy with different fire severities, and the use of Landsat data for fires that occurred in 2015 images. The agreement between the classification of severity in the field and the classification by the adjusted ∆NBR thresholds was satisfactory (overall accuracy = 74.2%; Kappa coefficient = 0.635). Using the Key & Benson thresholds resulted in a Kappa value of only 0.184, and the severity classification would be underestimated. We applied the new threshold values to map forest fire severity in the central Amazon from 1995 to 2017. The year 2015 had the greatest area of fire, of which 60.7% was classified as moderate, 19% as high, and 20% as low severity. The results corroborate the importance of adjusting decision thresholds for each study area to classify fire severity using ∆NBR.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"40 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Land‐use changes are anticipated to be a substantial contributor to global change climate, substantially causing significant modifications in soil characteristics. This study addressed the impact of land‐use change from native forests to grasslands on the soil physico‐chemical properties in entirely replicated grasslands of three different forest zones (Oak, Pine and Cypress) in temperate region of Kumaun Himalaya. A total of 162 soil samples (6 sites × 3 plots × 3 seasons × 3 depths = 162 samples) were randomly collected from each site in triplicates from depths. The soil texture, bulk density (bD), porosity, water holding capacity, soil moisture content, pH, organic carbon (SOC), total nitrogen (TN), available phosphorus (P) and available potassium (K) were determined at different depths in forest and grassland sites. Results showed that soil bD, pH, SOC, TN, P and K significantly (p < 0.05) decreased with increasing depth. Moreover, conversion of forests into grassland reduced nutrient concentrations, physical qualities (bD and porosity), and pH levels. The decreasing trend of nutrient along the soil depth explains that the zone of nutrient accumulation is not well established in these grasslands because of the substantial leaching effect. Our findings indicate that conversion of natural forests into grasslands resulted in significant losses of SOC and TN stocks which can be attributed to the disturbance of natural forests. Therefore, while making land‐use change plans, the impact of these alterations on soil nutrients must be considered. These findings emphasize the value of establishing natural vegetation (forests) in these areas to retain nutrients and safeguard soil against runoff and erosion. However, anticipating the physico‐chemical impacts of land‐use alteration necessitates a better comprehension of its relations with other drivers of global change, such as changing climate and nitrogen deposition.
{"title":"Changes in Soil Properties, Organic Carbon, and Nutrient Stocks After Land‐Use Change From Forests to Grasslands in Kumaun Himalaya, India","authors":"Archana Fartyal, Surendra Singh Bargali, Kiran Bargali, Bhawna Negi","doi":"10.1002/ldr.5507","DOIUrl":"https://doi.org/10.1002/ldr.5507","url":null,"abstract":"Land‐use changes are anticipated to be a substantial contributor to global change climate, substantially causing significant modifications in soil characteristics. This study addressed the impact of land‐use change from native forests to grasslands on the soil physico‐chemical properties in entirely replicated grasslands of three different forest zones (Oak, Pine and Cypress) in temperate region of Kumaun Himalaya. A total of 162 soil samples (6 sites × 3 plots × 3 seasons × 3 depths = 162 samples) were randomly collected from each site in triplicates from depths. The soil texture, bulk density (bD), porosity, water holding capacity, soil moisture content, pH, organic carbon (SOC), total nitrogen (TN), available phosphorus (P) and available potassium (K) were determined at different depths in forest and grassland sites. Results showed that soil bD, pH, SOC, TN, P and K significantly (<jats:italic>p</jats:italic> < 0.05) decreased with increasing depth. Moreover, conversion of forests into grassland reduced nutrient concentrations, physical qualities (bD and porosity), and pH levels. The decreasing trend of nutrient along the soil depth explains that the zone of nutrient accumulation is not well established in these grasslands because of the substantial leaching effect. Our findings indicate that conversion of natural forests into grasslands resulted in significant losses of SOC and TN stocks which can be attributed to the disturbance of natural forests. Therefore, while making land‐use change plans, the impact of these alterations on soil nutrients must be considered. These findings emphasize the value of establishing natural vegetation (forests) in these areas to retain nutrients and safeguard soil against runoff and erosion. However, anticipating the physico‐chemical impacts of land‐use alteration necessitates a better comprehension of its relations with other drivers of global change, such as changing climate and nitrogen deposition.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"164 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gui-bang Zhang, Qing-wei Zhang, Wen-xuan Kuan, Jian Wang, Jun'e Liu, Hao Wang, Ming Li
Forest restoration with Robinia pseudoacacia L. has many benefits, and dynamics of dissolved organic matter (DOM) might provide insight into soil restoration. Nevertheless, studies regarding the changes in the DOM within soil aggregates during artificial forest restoration are relatively limited in semiarid regions. Soil aggregates were collected from the topsoil, middle soil, and subsoil layers (i.e., 0–20, 30–50, and 80–100 cm) at six forests (i.e., R. pseudoacacia L.) lands with various restoration ages in a typical semiarid region. The variations of DOM properties in silt + clay size classes, microaggregates and macroaggregates (i.e., < 0.053 mm, 0.053–0.25 mm, and > 0.25 mm) were explored by UV–visible and three-dimensional excited emission matrix spectral. Overall, dissolved organic carbon (DOC) content (41.24–119.82 mg kg−1) of soil aggregates generally increased with restoration age. The DOC content in topsoil aggregates was 3.11–7.13 times larger than those from the other two soil layers. The molecular weight, aromaticity degree, and humification degree had the same trends as that of DOC content with soil depth. The DOC content and aromaticity degree of DOM in macroaggregates were 1.26–4.27 times and 1.01–1.18 times higher than those in microaggregates and silt + clay size classes at most soil layers, respectively. These variations in DOM within soil aggregates were primarily attributed to the changes in soil texture and the densities of plant roots and litter during the forest restoration. The study reveals the positive impact of forest restoration on the increase of DOC content, providing scientific evidence for soil management.
{"title":"Dissolved Organic Matter Within Soil Aggregates in Forest Restoration: Insights From Optical Properties","authors":"Gui-bang Zhang, Qing-wei Zhang, Wen-xuan Kuan, Jian Wang, Jun'e Liu, Hao Wang, Ming Li","doi":"10.1002/ldr.5509","DOIUrl":"https://doi.org/10.1002/ldr.5509","url":null,"abstract":"Forest restoration with <i>Robinia pseudoacacia</i> L. has many benefits, and dynamics of dissolved organic matter (DOM) might provide insight into soil restoration. Nevertheless, studies regarding the changes in the DOM within soil aggregates during artificial forest restoration are relatively limited in semiarid regions. Soil aggregates were collected from the topsoil, middle soil, and subsoil layers (i.e., 0–20, 30–50, and 80–100 cm) at six forests (i.e., <i>R. pseudoacacia</i> L.) lands with various restoration ages in a typical semiarid region. The variations of DOM properties in silt + clay size classes, microaggregates and macroaggregates (i.e., < 0.053 mm, 0.053–0.25 mm, and > 0.25 mm) were explored by UV–visible and three-dimensional excited emission matrix spectral. Overall, dissolved organic carbon (DOC) content (41.24–119.82 mg kg<sup>−1</sup>) of soil aggregates generally increased with restoration age. The DOC content in topsoil aggregates was 3.11–7.13 times larger than those from the other two soil layers. The molecular weight, aromaticity degree, and humification degree had the same trends as that of DOC content with soil depth. The DOC content and aromaticity degree of DOM in macroaggregates were 1.26–4.27 times and 1.01–1.18 times higher than those in microaggregates and silt + clay size classes at most soil layers, respectively. These variations in DOM within soil aggregates were primarily attributed to the changes in soil texture and the densities of plant roots and litter during the forest restoration. The study reveals the positive impact of forest restoration on the increase of DOC content, providing scientific evidence for soil management.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"79 2 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Research has paid much attention to climate change and natural resource management while overlooking a critical area of harvested cropland, land degradation, and agricultural growth. Nonetheless, the global population is rapidly increasing, and China, as the most populated economy globally, could face the issue of land degradation and scarcity of agricultural products. It is crucial to recognize the factors determining agriculture growth in the region. In this regard, this research intends to analyze the influence of land degradation, agriculture cropland, and agricultural growth. China has increased its green energy production and consumption climate change abatement, and water utilization for industrial and agricultural purposes. Therefore, these factors are also considered along with the socioeconomic conditions and technological advancement. Covering the quarterly data from 1980Q1 to 2023Q4, this research uses time series cointegration tests, which validate the presented of long-run association. Following the mixed order of integration on variables, this uses the autoregressive distributed lag approach. The results mention that harvested cropland, water resources, and green energy are the significant drivers of agriculture growth in the short and long run. The study recommends investing in modern agriculture technology, implementing policies to improve socioeconomic conditions, enhancing circular economy and maintaining food security.
{"title":"Dilemma of Harvested Cropland and Land Degradation in Agriculture Growth: Determining the Role of Water and Green Energy Resources","authors":"Hao Hu, Guangqiang Luo","doi":"10.1002/ldr.5499","DOIUrl":"https://doi.org/10.1002/ldr.5499","url":null,"abstract":"Research has paid much attention to climate change and natural resource management while overlooking a critical area of harvested cropland, land degradation, and agricultural growth. Nonetheless, the global population is rapidly increasing, and China, as the most populated economy globally, could face the issue of land degradation and scarcity of agricultural products. It is crucial to recognize the factors determining agriculture growth in the region. In this regard, this research intends to analyze the influence of land degradation, agriculture cropland, and agricultural growth. China has increased its green energy production and consumption climate change abatement, and water utilization for industrial and agricultural purposes. Therefore, these factors are also considered along with the socioeconomic conditions and technological advancement. Covering the quarterly data from 1980Q1 to 2023Q4, this research uses time series cointegration tests, which validate the presented of long-run association. Following the mixed order of integration on variables, this uses the autoregressive distributed lag approach. The results mention that harvested cropland, water resources, and green energy are the significant drivers of agriculture growth in the short and long run. The study recommends investing in modern agriculture technology, implementing policies to improve socioeconomic conditions, enhancing circular economy and maintaining food security.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"38 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sinan Li, Junwei Pu, Xiaodong Deng, Baiyu Dong, Yue Su
Ecological barrier areas are the natural area with special ecological functions, and play a vital role in maintaining the global ecological balance, protecting biodiversity, and regulating climate. They also profoundly affect the local social system and the inhabitants' lifestyle. Mitigating trade-offs between distinct ecosystem services and enhancing social–ecological system coupling are essential for the sustainable development of ecological barrier areas. However, the lack of integrating them on topographical gradient features compromises our ability to design precise interventions for regional sustainability. Taking the Sichuan-Yunnan Ecological Barrier area as a case area, this study developed a management approach by integrating ecosystem service interactions and social–ecological system coupling under multidimensional topographical gradients to provide a reference for assessing and improving the sustainability of the ecological barrier area. The results demonstrated that during 2010–2020, topography played a key role in shaping ecosystem service interactions, with the hilly area showing the highest synergistic level for multiple service pairs. The high and highest relief mountain areas had the lowest coupling index of the social–ecological system; this coupling index decreased rapidly in the flatter areas, while it increased in the low and middle relief mountain areas. Based on the above multi-dimensional characteristics, six sustainable development zones were subdivided for formulating differentiated management strategies and improving regional sustainability. This research provides essential insights for improving the sustainability of ecological barrier area regarding differentiated territorial spatial management strategies, and delivers guidance for coordinating relationships between social and ecological systems in other similar areas.
{"title":"Improving Ecological Barrier Area Sustainability Integrating Ecosystem Service Interaction and Social–Ecological System Coupling","authors":"Sinan Li, Junwei Pu, Xiaodong Deng, Baiyu Dong, Yue Su","doi":"10.1002/ldr.5506","DOIUrl":"https://doi.org/10.1002/ldr.5506","url":null,"abstract":"Ecological barrier areas are the natural area with special ecological functions, and play a vital role in maintaining the global ecological balance, protecting biodiversity, and regulating climate. They also profoundly affect the local social system and the inhabitants' lifestyle. Mitigating trade-offs between distinct ecosystem services and enhancing social–ecological system coupling are essential for the sustainable development of ecological barrier areas. However, the lack of integrating them on topographical gradient features compromises our ability to design precise interventions for regional sustainability. Taking the Sichuan-Yunnan Ecological Barrier area as a case area, this study developed a management approach by integrating ecosystem service interactions and social–ecological system coupling under multidimensional topographical gradients to provide a reference for assessing and improving the sustainability of the ecological barrier area. The results demonstrated that during 2010–2020, topography played a key role in shaping ecosystem service interactions, with the hilly area showing the highest synergistic level for multiple service pairs. The high and highest relief mountain areas had the lowest coupling index of the social–ecological system; this coupling index decreased rapidly in the flatter areas, while it increased in the low and middle relief mountain areas. Based on the above multi-dimensional characteristics, six sustainable development zones were subdivided for formulating differentiated management strategies and improving regional sustainability. This research provides essential insights for improving the sustainability of ecological barrier area regarding differentiated territorial spatial management strategies, and delivers guidance for coordinating relationships between social and ecological systems in other similar areas.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"140 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In today's global context, sustainability is a crucial factor for both emerging and established industries, including mining. The sector significantly affects social, economic, and environmental dimensions, creating job opportunities that can boost regional income while also contributing to adverse environmental consequences such as air and water pollution, land degradation, and soil contamination. This study employs dynamic modelling and evaluation techniques to examine the interplay between social, economic, and environmental factors, focusing on the sustainability of mining in Ariyalur district, Tamil Nadu. The findings indicate that Ariyalur district has achieved a nearly optimal state of sustainability, with the sustainable development index rising from 0.880 in 2016–0.921 by 2030. The sustainable development index intends to provide a holistic view on the social, economic, and environmental status of the region. This increase underscores the potential for enhanced carrying capacity in the region, allowing for future mineral production without compromising sustainability. These results provide valuable insights for policymakers and industry stakeholders aiming to balance economic growth with environmental stewardship. The proposed model serves as a framework for evaluating sustainability across various industries, highlighting the importance of integrated approaches in resource management.
{"title":"Integrated Evaluation Approach for Land Sustainable Management and Carrying Capacity of Clustered Mining Area in the Cement City of South India","authors":"E. Kumar, T. Subramani, P. Gopinathan","doi":"10.1002/ldr.5501","DOIUrl":"https://doi.org/10.1002/ldr.5501","url":null,"abstract":"In today's global context, sustainability is a crucial factor for both emerging and established industries, including mining. The sector significantly affects social, economic, and environmental dimensions, creating job opportunities that can boost regional income while also contributing to adverse environmental consequences such as air and water pollution, land degradation, and soil contamination. This study employs dynamic modelling and evaluation techniques to examine the interplay between social, economic, and environmental factors, focusing on the sustainability of mining in Ariyalur district, Tamil Nadu. The findings indicate that Ariyalur district has achieved a nearly optimal state of sustainability, with the sustainable development index rising from 0.880 in 2016–0.921 by 2030. The sustainable development index intends to provide a holistic view on the social, economic, and environmental status of the region. This increase underscores the potential for enhanced carrying capacity in the region, allowing for future mineral production without compromising sustainability. These results provide valuable insights for policymakers and industry stakeholders aiming to balance economic growth with environmental stewardship. The proposed model serves as a framework for evaluating sustainability across various industries, highlighting the importance of integrated approaches in resource management.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"55 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Karst rocky desertification (KRD) has become the most serious ecological environmental problem in South China. Since 2008, the Chinese government has implemented a special project for KRD control. Because there are large populations in KRD areas of South China who need to survive, KRD control must not only pay attention to the ecological effects of vegetation restoration but also take into account the economic benefits and industrial effects of the local populations' survival needs. Agro-forestry integrated management can produce remarkable economic effects in vegetation restorations and can play an important role in KRD control. In this review, firstly, the KRD hazards and control in South China were reviewed. The features and advantages of agro-forestry integrated management were concluded. Then, based on a typical case in South China, the model establishment and practice of agro-forestry integrated management for KRD control were introduced. The case results showed that agro-forestry integrated management achieved remarkable ecological and economic benefits in KRD control. Finally, the existing challenges and their optimization strategies of the agro-forestry integrated management for KRD control were provided. This review provides important clues for scientific KRD control and is of great significance for the sustainable development of the karst region in South China.
{"title":"Agro-Forestry Integrated Management of Karst Rocky Desertification Control: The Model Establishment and Practices in South China","authors":"Maoyin Sheng, Chunmei Yang, Linjiao Wang","doi":"10.1002/ldr.5503","DOIUrl":"https://doi.org/10.1002/ldr.5503","url":null,"abstract":"Karst rocky desertification (KRD) has become the most serious ecological environmental problem in South China. Since 2008, the Chinese government has implemented a special project for KRD control. Because there are large populations in KRD areas of South China who need to survive, KRD control must not only pay attention to the ecological effects of vegetation restoration but also take into account the economic benefits and industrial effects of the local populations' survival needs. Agro-forestry integrated management can produce remarkable economic effects in vegetation restorations and can play an important role in KRD control. In this review, firstly, the KRD hazards and control in South China were reviewed. The features and advantages of agro-forestry integrated management were concluded. Then, based on a typical case in South China, the model establishment and practice of agro-forestry integrated management for KRD control were introduced. The case results showed that agro-forestry integrated management achieved remarkable ecological and economic benefits in KRD control. Finally, the existing challenges and their optimization strategies of the agro-forestry integrated management for KRD control were provided. This review provides important clues for scientific KRD control and is of great significance for the sustainable development of the karst region in South China.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"43 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amit Kumar, Vinod Kumar, Monika Thakur, Kirpal Singh, Rakesh Jasrotia, Rupesh Kumar, Maja Radziemska
Lead (Pb), a pervasive and highly toxic metal, and poses significant environmental and health risks due to its extensive biogeochemical cycling, driven by anthropogenic activities. This review evaluates the health hazards allied with Pb contamination in surface water bodies, soils, and rice grains, based on a comprehensive analysis (2015–2024) of 118, 133, and 102 literature studies, respectively. The year-wise assessment of Pb concentration in surface water bodies and soils frequently exceeded their permissible limits in 2015, 2017, 2018, 2019, 2020, and 2022. However, the mean Pb concentration in rice grains consistently surpassed the Codex Alimentarius limit (2.5 μg/g) across the analyzed years. Geographically, Bangladesh, India, Pakistan, and China surpassed their limits for surface water bodies, rice grains and soils, emphasizing regional vulnerabilities. Health risk analysis indicated hazard quotient values exceeding one for children and adults in surface water bodies and rice grains, exhibiting significant non-carcinogenic risks. In soils, dermal exposure identified as the predominant pathways contributing to health hazard followed by ingestion, while inhalation presented the lower risk. These findings emphasize the imperative necessitate for implementing strict regulatory frameworks and preventive measures to mitigate Pb contamination in the environment and minimize its potential health impacts. This study advances understanding of Pb exposure pathways and risks, offering valuable insights for targeted mitigation strategies and public health interventions.
{"title":"Global Perspectives on Lead Contamination and Health Risks in Surface Water, Rice Grains, and Soils","authors":"Amit Kumar, Vinod Kumar, Monika Thakur, Kirpal Singh, Rakesh Jasrotia, Rupesh Kumar, Maja Radziemska","doi":"10.1002/ldr.5510","DOIUrl":"https://doi.org/10.1002/ldr.5510","url":null,"abstract":"Lead (Pb), a pervasive and highly toxic metal, and poses significant environmental and health risks due to its extensive biogeochemical cycling, driven by anthropogenic activities. This review evaluates the health hazards allied with Pb contamination in surface water bodies, soils, and rice grains, based on a comprehensive analysis (2015–2024) of 118, 133, and 102 literature studies, respectively. The year-wise assessment of Pb concentration in surface water bodies and soils frequently exceeded their permissible limits in 2015, 2017, 2018, 2019, 2020, and 2022. However, the mean Pb concentration in rice grains consistently surpassed the <i>Codex Alimentarius</i> limit (2.5 μg/g) across the analyzed years. Geographically, Bangladesh, India, Pakistan, and China surpassed their limits for surface water bodies, rice grains and soils, emphasizing regional vulnerabilities. Health risk analysis indicated hazard quotient values exceeding one for children and adults in surface water bodies and rice grains, exhibiting significant non-carcinogenic risks. In soils, dermal exposure identified as the predominant pathways contributing to health hazard followed by ingestion, while inhalation presented the lower risk. These findings emphasize the imperative necessitate for implementing strict regulatory frameworks and preventive measures to mitigate Pb contamination in the environment and minimize its potential health impacts. This study advances understanding of Pb exposure pathways and risks, offering valuable insights for targeted mitigation strategies and public health interventions.","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"10 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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